We zero out the entire trace buffer used for ETR before it is enabled,
for helping with debugging. With the addition of scatter-gather mode,
the buffer could be bigger and non-contiguous.
Get rid of this step; if someone wants to debug, they can always add it
as and when needed.
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
{
u32 axictl, sts;
- /* Zero out the memory to help with debug */
- memset(drvdata->vaddr, 0, drvdata->size);
-
CS_UNLOCK(drvdata->base);
/* Wait for TMCSReady bit to be set */
if (drvdata->mode == CS_MODE_SYSFS) {
/*
* The trace run will continue with the same allocated trace
- * buffer. The trace buffer is cleared in tmc_etr_enable_hw(),
- * so we don't have to explicitly clear it. Also, since the
- * tracer is still enabled drvdata::buf can't be NULL.
+ * buffer. Since the tracer is still enabled drvdata::buf can't
+ * be NULL.
*/
tmc_etr_enable_hw(drvdata);
} else {